{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,13]],"date-time":"2026-06-13T15:48:29Z","timestamp":1781365709305,"version":"3.54.1"},"reference-count":0,"publisher":"Press of International Journal of Ophthalmology (IJO Press)","issue":"12","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int J Ophthalmol"],"published-print":{"date-parts":[[2020,12,18]]},"abstract":"<jats:p>AIM: To investigate the clinical efficacy and safety of femtosecond laser-assisted steepest-meridian clear corneal incisions for correcting preexisting corneal astigmatism performed at the time of cataract surgery.\nMETHODS: This prospective case series study comprised consecutive age-related cataract patients with corneal regular astigmatism (range: +0.75 to +2.50 D) who had femtosecond laser-assisted steepest-meridian clear corneal incisions (single or paired). Corneal astigmatism was performed with the Pentacam preoperatively and 3mo postoperatively. Total corneal astigmatism and steepest-meridian measured in the 3-mm central zone were used to guide the location, size and number of clear corneal incision. The vector analysis of astigmatic change was performed using the Alpins method.\nRESULTS: Totally 138 eyes of 138 patients were included. The mean preoperative corneal astigmatism was 1.31\u00b10.41 D, and was significantly reduced to 0.69\u00b10.34 D (equivalent to difference vector) after surgery (P&lt;0.01). The surgically-induced astigmatism was 1.02\u00b10.54 D. The correction index (ratio of target induced astigmatism and surgically-induced astigmatism: 0.72\u00b10.36) as well as the magnitude of error (difference between surgically-induced astigmatism and target induced astigmatism: -0.29\u00b10.51) represented a slight under correction. For angle of error, the arithmetic mean was 1.11\u00b113.70, indicating no significant systematic alignment errors.\nCONCLUSION: Femtosecond-assisted steepest-meridian clear corneal incision is a fast, customizable, adjustable, precise, and safe technique for the reduction of low to moderate corneal astigmatism during cataract surgery.<\/jats:p>","DOI":"10.18240\/ijo.2020.12.08","type":"journal-article","created":{"date-parts":[[2020,11,22]],"date-time":"2020-11-22T15:28:31Z","timestamp":1606058911000},"page":"1895-1900","source":"Crossref","is-referenced-by-count":5,"title":["Effect of femtosecond laser-assisted steepest-meridian clear corneal incisions on preexisting corneal regular astigmatism at the time of cataract surgery"],"prefix":"10.18240","volume":"13","author":[{"given":"Wei","family":"Chen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jian","family":"Wu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yong","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rong-Rong","family":"Zhu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hong","family":"Lu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huai-Jin","family":"Guan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"7543","container-title":["International Journal of Ophthalmology"],"original-title":[],"link":[{"URL":"http:\/\/ies.ijo.cn\/en_publish\/2020\/12\/20201208.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,11,22]],"date-time":"2020-11-22T16:15:45Z","timestamp":1606061745000},"score":1,"resource":{"primary":{"URL":"http:\/\/ies.ijo.cn\/gjyken\/ch\/reader\/view_abstract.aspx?file_no=20201208&flag=1"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,12,18]]},"references-count":0,"journal-issue":{"issue":"12","published-print":{"date-parts":[[2020,12,18]]}},"URL":"https:\/\/doi.org\/10.18240\/ijo.2020.12.08","relation":{},"ISSN":["2222-3959","2227-4898"],"issn-type":[{"value":"2222-3959","type":"print"},{"value":"2227-4898","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,12,18]]}}}